This page will show you the exact questions that came out in this year’s JAMB CBT MOCK Exam. This will be helpful for candidates ahead of the main examination.

The purpose is to give candidates fresh ideas on the kind of questions to expect during the main exam and motivate them towards stepping up their preparation for the main exam that begins on April 25 , 2025.
These are the real questions that were asked in the exam hall. They are categorized by subject.
While similar questions may be repeated, do note that you may NOT see any of these questions in the main exam.
So just use the questions you see on this page as a guide to know what to expect in the main exam.
Page Contents
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Real JAMB Questions That came out in 2025 Mock Exam
ENGLISH SECTION
- Either Adio or Ada will attend the party means:
(a) Adio will not attend the party but Ada will
(b) Ada will not attend the party but Adio will
(c) Neither Adio nor Ada will attend the party
(d) Only Adio and Ada will attend the party
Answer: (a) Adio will not attend the party but Ada will
- Which of the parents showers the teachers with gifts during the open day?
(From Lekki Headmaster) (a) Mr. Bello
(b) Mrs. Ojo
(c) Chief Balogun
(d) Mr. and Mrs. Aluko
Answer: (c) Chief Balogun (based on common interpretation; confirm with full text if available)
- Of the poles, the second is the: (a) Higher
(b) High
(c) Highes
(d) Highest
Answer: (a) Higher
- The opposite of: “The dressmaker unpicked the seam of the skirt” is: (a) Cut open
(b) Measured
(c) Sewed up
(d) Seamed
Answer: (c) Sewed up
- What figure of speech is used in “clean dishes” when referring to a bowl used for washing corpses? (a) Idiom
(b) Metaphor
(c) Irony
(d) Paradox
Answer: (a) Idiom
- Mary did her best —— failed to get the – – – – – mark. (a) and / pass
(b) but / passed
(c) but / pass
(d) and / passed
Answer: (c) but / pass
- Mr. Bepo planned his itinerary so that he could arrive at the venue on time. “Itinerary” means: (a) Decision
(b) Journey
(c) Route
(d) Programme
Answer: (c) Route
Synonyms
- Banish
(a) Welcome
(b) Invite
(c) Expel
(d) Include
Answer: (c) Expel
- Oblique
(a) Straight
(b) Horizontal
(c) Slanted
(d) Vertical
Answer: (c) Slanted
- Fussy
(a) Easygoing
(b) Finicky
(c) Tough
(d) Cheerful
Answer: (b) Finicky
- Nondescript
(a) Unremarkable
(b) Memorable
(c) Fancy
(d) Unique
Answer: (a) Unremarkable
Antonyms
- Preserving
(a) Keeping
(b) Saving
(c) Destroying
(d) Securing
Answer: (c) Destroying
- Effaced
(a) Hidden
(b) Faded
(c) Exposed
(d) Removed
Answer: (c) Exposed
- Apprehension
(a) Anxiety
(b) Doubt
(c) Confidence
(d) Fear
Answer: (c) Confidence
Figures of Speech
- “White-collar job” is an example of:
(a) Hyperbole
(b) Synecdoche
(c) Metaphor
(d) Paradox
Answer: (b) Synecdoche
- “Thoughts dance crazily through his mind” is an example of:
(a) Metaphor
(b) Personification
(c) Irony
(d) Hyperbole
Answer: (b) Personification
- “Clean dishes” as used in the passage is an example of:
(a) Idiom
(b) Metaphor
(c) Pun
(d) Simile
Answer: (a) Idiom
Oral English / Phonetics
- Which word has the same initial sound as KING?
(a) Sing
(b) Ring
(c) Thing
(d) Bring
Answer: (a) Sing
- Which word begins with the same consonant sound as BET?
(a) Pet
(b) Beat
(c) Get
(d) Vet
Answer: (b) Beat
- Which word has the same vowel sound as the “E” in MARK[E]?
(a) Set
(b) Met
(c) Net
(d) Bed
Answer: (a) Set
- Which word has the same vowel sound as the “U” in RULER?
(a) Pull
(b) Pool
(c) Cool
(d) Bull
Answer: (c) Cool
- Which word rhymes with Abound?
(a) Found
(b) Around
(c) Recounted
(d) Sound
Answer: (c) Recounted
- Which word rhymes with Permit?
(a) Commit
(b) Demit
(c) Limit
(d) Submit
Answer: (a) Commit.
22. Choose another word that can be used in place of the italicized word as used in the sentence from Lekki Headmaster Kabir Alabi:
Mr. Bepo planned his itinerary to arrive early.
a) Movement
b) Journey
c) Route
d) Path
23. The teachers were about to go against the principal during the meeting about Fafore because:
a) They perceived he was about to support what they assumed to be bad grammar
b) He was being too authoritarian
c) The MD would sack them if they didn’t
d) They knew Fafore was always bad in terms of grammar
24. Choose the correct syllable to be stressed in the word “declaration”:
a) DEclaration
b) deCLAration
c) declaRAtion
d) declaraTION
Answer: d) declaraTION
MATHEMATICS SECTION
1. What is the value of 34+23\frac{3}{4} + \frac{2}{3}?
A. 57\frac{5}{7}
B. 1712\frac{17}{12}
C. 67\frac{6}{7}
D. 1312\frac{13}{12}
Answer: D. 1312\frac{13}{12}
2. Solve for xx: 2x−5=92x – 5 = 9
A. 5
B. 6
C. 7
D. 8
Answer: C. 7
3. Find the area of a triangle with base 8 cm and height 5 cm.
A. 20 cm²
B. 40 cm²
C. 13 cm²
D. 32 cm²
Answer: A. 20 cm²
4. What is the square root of 144?
A. 10
B. 11
C. 12
D. 13
Answer: C. 12
5. If a box contains 5 red balls, 3 green balls, and 2 blue balls, what is the probability of picking a red ball at random?
A. 12\frac{1}{2}
B. 13\frac{1}{3}
C. 15\frac{1}{5}
D. 510\frac{5}{10}
Answer: A. 12\frac{1}{2}
6. Simplify: 2(3x−4)+4(x+2)2(3x – 4) + 4(x + 2)
A. 10x+410x + 4
B. 10x−410x – 4
C. 14x+814x + 8
D. 6x−86x – 8
Answer: A. 10x+410x + 4
7. Convert 0.75 to a fraction.
A. 34\frac{3}{4}
B. 12\frac{1}{2}
C. 23\frac{2}{3}
D. 56\frac{5}{6}
Answer: A. 34\frac{3}{4}
8. Find the next number in the sequence: 2, 4, 8, 16, ___
A. 18
B. 20
C. 24
D. 32
Answer: D. 32
9. A train travels 120 km in 2 hours. What is its average speed?
A. 60 km/h
B. 40 km/h
C. 30 km/h
D. 50 km/h
Answer: A. 60 km/h
10. Factorize: x2−9x^2 – 9
A. (x−3)(x+3)(x – 3)(x + 3)
B. (x−9)(x+1)(x – 9)(x + 1)
C. (x−1)(x+9)(x – 1)(x + 9)
D. (x−3)(x−3)(x – 3)(x – 3)
Answer: A. (x−3)(x+3)(x – 3)(x + 3)
Chemistry
1. Which of the following is an example of a chemical change?
A. Melting ice
B. Dissolving salt in water
C. Burning wood
D. Crushing a can
Answer: C. Burning wood
2. What is the atomic number of carbon?
A. 6
B. 12
C. 14
D. 8
Answer: A. 6
3. Which of the following elements is a noble gas?
A. Oxygen
B. Nitrogen
C. Argon
D. Chlorine
Answer: C. Argon
4. What is the chemical formula for water?
A. CO₂
B. H₂O
C. H₂O₂
D. CH₄
Answer: B. H₂O
5. What type of bond is formed when two atoms share electrons?
A. Ionic bond
B. Covalent bond
C. Metallic bond
D. Hydrogen bond
Answer: B. Covalent bond
6. Which of the following is a property of acids?
A. They turn red litmus paper blue
B. They taste bitter
C. They release hydrogen ions in solution
D. They feel slippery to touch
Answer: C. They release hydrogen ions in solution
7. What is the pH of a neutral solution at 25°C?
A. 0
B. 7
C. 14
D. 10
Answer: B. 7
8. Which of the following gases is produced when an acid reacts with a metal?
A. Oxygen
B. Hydrogen
C. Nitrogen
D. Carbon dioxide
Answer: B. Hydrogen
9. The atomic mass of an element is the sum of the number of protons and which other particle?
A. Electrons
B. Neutrons
C. Ions
D. Photons
Answer: B. Neutrons
10. What is the chemical symbol for sodium?
A. Na
B. So
C. Sd
D. Sn
Answer: A. Na
Biology
1. What is the basic unit of life?
A. Atom
B. Cell
C. Tissue
D. Organ
Answer: B. Cell
2. Which organelle is responsible for energy production in the cell?
A. Nucleus
B. Mitochondrion
C. Ribosome
D. Golgi Apparatus
Answer: B. Mitochondrion
3. What is the primary function of red blood cells?
A. Transporting oxygen
B. Fighting infections
C. Producing insulin
D. Storing energy
Answer: A. Transporting oxygen
4. What is the process by which plants make their own food using sunlight?
A. Respiration
B. Photosynthesis
C. Transpiration
D. Digestion
Answer: B. Photosynthesis
5. Which of the following is NOT a type of muscle tissue?
A. Skeletal
B. Smooth
C. Cardiac
D. Connective
Answer: D. Connective
6. Which gas is released as a byproduct of photosynthesis?
A. Oxygen
B. Carbon dioxide
C. Nitrogen
D. Methane
Answer: A. Oxygen
7. What is the process called when a cell divides to form two identical daughter cells?
A. Meiosis
B. Mitosis
C. Binary fission
D. Cytokinesis
Answer: B. Mitosis
8. Which type of blood vessel carries blood away from the heart?
A. Vein
B. Artery
C. Capillary
D. Lymphatic vessel
Answer: B. Artery
9. What is the main function of the human digestive system?
A. To circulate blood
B. To break down food and absorb nutrients
C. To protect the body from pathogens
D. To exchange gases in the lungs
Answer: B. To break down food and absorb nutrients
10. Which of the following is the largest organ in the human body?
A. Heart
B. Brain
C. Skin
D. Liver
Answer: C. Skin
PHYSICS
1. What is the SI unit of force?
A. Newton (N)
B. Joule (J)
C. Watt (W)
D. Pascal (Pa)
Answer: A. Newton (N)
2. Which of the following quantities is a vector?
A. Mass
B. Speed
C. Displacement
D. Temperature
Answer: C. Displacement
3. Which law states that the force acting on an object is equal to its mass times its acceleration?
A. Newton’s First Law
B. Newton’s Second Law
C. Newton’s Third Law
D. Law of Universal Gravitation
Answer: B. Newton’s Second Law
4. The work done by a force is equal to the product of the force and the distance moved in the direction of the force. This is known as:
A. Kinetic energy
B. Potential energy
C. Work-Energy Theorem
D. Law of Conservation of Energy
Answer: C. Work-Energy Theorem
5. Which of the following is a unit of energy?
A. Newton
B. Joule
C. Watt
D. Meter
Answer: B. Joule
6. What is the formula for calculating the kinetic energy of an object?
A. KE = mv²
B. KE = ½ mv²
C. KE = mgh
D. KE = ½ mv
Answer: B. KE = ½ mv²
7. Which of the following forms of energy is stored in a compressed spring?
A. Kinetic energy
B. Elastic potential energy
C. Gravitational potential energy
D. Thermal energy
Answer: B. Elastic potential energy
8. What is the speed of light in a vacuum?
A. 3.0 × 10⁸ m/s
B. 3.0 × 10⁶ m/s
C. 1.0 × 10⁸ m/s
D. 1.0 × 10⁶ m/s
Answer: A. 3.0 × 10⁸ m/s
9. What is the frequency of a wave?
A. The distance between two peaks
B. The number of oscillations per second
C. The energy of the wave
D. The speed of the wave
Answer: B. The number of oscillations per second
10. What is the force of attraction between two objects due to their masses called?
A. Gravitational force
B. Electromagnetic force
C. Nuclear force
D. Frictional force
Answer: A. Gravitational force.
BIOLOGY
- In plants, the development of the zygote gives rise to:
- a) Fruit
- b) Seed
- c) Embryo
- d) [Blank]
Answer: c) Embryo
- Which of the following sense organs is responsible for balance?
- a) Nose
- b) Eye
- c) Skin
- d) Ear
Correct answer: d) Ear
- In which part of the kidney does selective reabsorption take place?
- a) Glomerulus
- b) Bowman’s capsule
- c) Loop of Henle
- d) [Blank]
Correct answer: c) Loop of Henle
- The plants which are well adapted to deserts are:
- a) Xerophytes
- b) Hydrophytes
- c) Halophytes
- d) [Blank]
Correct answer: a) Xerophytes
- Which part of a germinating plant gives rise to the shoot?
- a) Plumule
- b) Radical
- c) Cotyledon
- d) Endosperm
Correct answer: a) Plumule
- Loamy soil is characterized by:
- a) High humus and moderate porosity
- b) High humus and low porosity
- c) Low humus and high porosity
- d) [Blank]
- (Diagram of axile placentation) The diagram above represents:
- a) Parietal placentation
- b) Marginal placentation
- c) Axile placentation
- d) [Blank]
- (Diagram of Euglena) Which part is responsible for food production?
- a) [Blank]
- b) [Blank]
- c) [Blank]
- d) [Blank]
- The CO2 found in animals comes from:
- a) Breathing CO2
- b) Carbonated juice
- c) Plants
- d) [Blank]
- (Diagram of Tilapia fish showing its operculum) The exchange of gases takes place by:
- a) Osmosis
- b) Diffusion
- c) [Blank]
- d) [Blank]
- Arthropods and molluscs have which type of circulatory system?
- a) Closed circulatory system
- b) Open circulatory system
- c) Double circulatory system
- d) Single circulatory system
- Which of the following has little or no current?
- a) Pond
- b) Stream
- c) Lake
- d) Swamp
- Rod-shaped bacteria are called:
- a) Coccus
- b) Bacillus
- c) Spirillum
- The dentition I3/3, C1/1, P4/4, M3/3 corresponds to:
- a) Sheep
- b) Man
- c) Dog
- d) Rabbit
- The dead cells in lignin are associated with:
- a) Sclerenchyma
- b) Xylem
- c) Phloem
- d) Collenchyma
- Which of the following is a disadvantage of asexual reproduction?
- a) No variation
- b) [Blank]
- c) [Blank]
- d) [Blank]
- What is the advantage of asexual reproduction?
- Comparative anatomy is based on:
- a) Five-digit fingers
- b) Four-digit fingers
- c) Three-digit fingers
- d) Two-digit fingers
- The theory of acquired inheritance was proposed by:
- a) Darwin
- b) Lamarck
- c) [Blank]
- d) [Blank]
- The theory of use and disuse was also proposed by:
- [Blank]
- Which of the following is a continuous variation?
- a) Fingerprint
- b) Ability to taste PTC
- c) Intelligence
- d) [Blank]
- Water gas is a combination of:
- a) CO & H2
- b) CO2 & H2
- c) [Blank]
- d) [Blank]
- If the principal quantum number is 3, the subshell would be:
- a) 1
- b) 2
- c) 3
- d) 4
- Which of the following is a chemical change?
- a) Sodium hydroxide reacts with water
- b) Magnesium reacts with HCl
- c) Sugar dissolves in water
- d) [Blank]
- The ore of Aluminum is:
- a) Bauxite
- b) Haematite
- c) [Blank]
- d) [Blank]
- Permalloy is a combination of:
- a) Fe & Ni
- b) Fe & Cr
- c) [Blank]
- d) [Blank]
- Glucose is a combination of:
- a) Alkanol and Alkanone
- b) Alkanol and Alkanal
- c) Alkanal and Alkanone
- d) [Blank]
- [CH2O]n, if the value of n is 10,000–30,000, the polymer is likely to be:
- a) Glucose
- b) Amylase
- c) Cellulose
- d) [Blank]
- Why is metal used in plumbing?
- a) Low density
- b) High resistance to corrosion
- c) [Blank]
- d) [Blank]
- Dust particles are an example of:
- a) Emulsion
- b) Aerosol
- c) [Blank]
- d) [Blank]
PHYSICS
- What is the unit of inductance?
A. Henry
B. Tesla
C. Joules
D. Ohms - In the diagram (2Ω and 3Ω resistors connected in parallel), the power dissipated in the 3Ω resistor is 5W.
Calculate the power dissipated in the 2Ω resistor. - A body is projected with an initial velocity of 30 m/s at an angle of 15°.
(Take g = 10 m/s²)
Find the range. - Which law explains the change in direction (in optics or motion)?
(The full question seems incomplete) - What does Charles’ Law state?
- Calculate stress if the weight is y2y^2 Newton and the diameter is yπ\frac{y}{\pi} meters.
A. 4π4\pi
B. 2π2\pi - A question on sound waves using the equation:
V=f×λV = f \times \lambda - Convert -40°C to Fahrenheit:
A. 10°F
B. 20°F
C. -40°F - Find the resultant of two velocities (3 m/s and 4 m/s) inclined at an angle of 60°.
- A question asking for velocity ratio when the effort is hung at distance ‘a’ and load at distance ‘b’ from the pivot.
- Acceleration of a body on an inclined plane with angle θ\theta and coefficient of friction μ\mu.
- A question on convex mirror.
- Conversion of a galvanometer to an ammeter:
A. Parallel
B. Series - Open-circuit voltage of a fully charged lead-acid battery:
A. 12V
B. 24V
C. 6V - Beat frequency between 6 Hz and 4 Hz:
Correct answer: 2 Hz
Other options:
A. 10 Hz
B. 1.5 Hz
C. 24 Hz - What color is seen when a red flower is viewed through blue light?
A. Yellow
B. Magenta
C. Cyan - Presbyopia is corrected by:
A. Bifocal lenses
B. Cylindrical lenses - For the wave equation Y=0.9sin(200t−0.6x)Y = 0.9 \sin(200t – 0.6x),
where t is in seconds and x is in meters.
(Find values or characteristics depending on what the question is asking)
MATHEMATICS
- Evaluate: log0.5(32)\log_{0.5}(32)
- Given:
A=[7564]A = \begin{bmatrix} 7 & 5 \\ 6 & 4 \end{bmatrix}
Find: 2A−12A^{-1} - Find the gradient of the graph:
y=3x−4y+8y = 3x – 4y + 8 (This equation needs clarification) - If tanθ=34\tan\theta = \frac{3}{4}, find cosθ−sinθ\cos\theta – \sin\theta.
- Solve for x:
2log(x)=log(5x−6)2 \log(x) = \log(5x – 6) - In a class of 36 students, 20 take Physics and 12 take Economics.
How many take neither subject? - What is the locus of a point equidistant from two fixed points?
- Differentiate: cos(25)−sin(25)\cos(25) – \sin(25)
(Clarify if angle is in degrees or variable) - Solve the inequality:
4x<−2\frac{4}{x} < -2
PHYSICS QUESTIONS
- In a hot cathode, what increases the number of electrons produced?
A. Increase in temperature
B. Decrease in temperature
C. Increase in PD
D. Decrease in PD - Open-circuit voltage of a fully charged lead-acid battery?
A. 12V
B. 20V
C. 15V - Which instrument does a pilot use to measure altitude (height above sea level)?
- A spring with a force constant of 1300 N/m is acted on by a constant force of 50 N.
Calculate the potential energy stored in the spring.
PHYSICS
- What is the SI unit of inductance?
a. Henry
b. Tesla
c. Joules
d. Ohms - Power Calculation:
In a parallel connection of 2Ω and 3Ω resistors, if the power dissipated in the 3Ω resistor is 5W, calculate the power dissipated in the 2Ω. - Projectile Motion:
What is the range when the initial velocity is 30 m/s at an angle of 15°? (g = 10 m/s²) - Which law explains change in direction of motion due to force?
- Charles’ Law states that…?
- Calculate stress if weight is y² N and diameter is y/π m.
A. 4π
B. 2π - Sound wave question using v=fλv = f \lambda
- Convert -40°C to Fahrenheit:
A. 10°F
B. 20°F
C. -40°F - Find the resultant of two velocities 3 m/s and 4 m/s inclined at an angle of 60°.
- Velocity ratio question:
Given effort is hung at distance a to the pivot and load at distance b. - Acceleration of a body on an inclined plane with angle θ and coefficient of friction μ.
- Question on convex mirror.
- Conversion of galvanometer to ammeter:
A. Parallel
B. Series - Open circuit voltage of a fully charged lead-acid battery:
A. 12V
B. 24V
C. 6V - Beat frequency between 6 Hz and 4 Hz:
A. 10
B. 1.5
C. 2 (Correct Answer)
D. 24 - Colour of red flower viewed through blue light:
A. Yellow
B. Magenta
C. Cyan
D. Green - Presbyopia is corrected by:
A. Convex lens
B. Concave lens
C. Bifocal lenses
D. Cylindrical lenses - Wave Equation:
Y=0.9sin(200t−0.6x)Y = 0.9 \sin(200t – 0.6x), where t and x are in seconds and meters respectively. - In a hot cathode, what increases number of electrons produced?
A. Increase in temperature
B. Decrease in temperature
C. Increase in PD
D. Decrease in PD - Instrument used by pilots to measure height above sea level?
- Spring Constant Problem:
A spring with k = 1300 N/m is acted on by a force of 50 N. Calculate potential energy stored. - Angle of dip:
A. 0° at the poles
B. 90° at the equator
C. 90° at the poles
23. Which of the following instruments is based on Archimedes’ principle?
A. Galvanometer
B. Hydrometer
C. Ohmmeter
D. Voltmeter
24. What is the color of a red rose under blue light?
A. Green
B. Blue
C. Yellow
D. Black
25. If a room is saturated with water vapour, the temperature of the room must be:
A. at 0°C
B. above the dew point
C. at 100°C
D. below or at the dew point
26. A man exerts a pressure of 4.5 × 10³ Nm⁻² on the ground and has 2.5 × 10⁻² m² of his feet in contact with the ground. The weight of the man is:
A. 102 N
B. 70 N
C. 140 N
D. 112 N
27. The focal length of the objective lens of a telescope is 100 cm. If the magnifying power of the telescope is 50, what is the focal length of the eyepiece?
A. 2 cm
B. 0.4 cm
C. 2.4 cm
D. 0.5 cm
28. The electric field intensity in a place where a charge of 10⁻¹⁰ C experiences a force of 0.4 N is:
A. 4.0 × 10⁷ NC⁻¹
B. 8.0 × 10⁹ NC⁻¹
C. 8.0 × 10⁻¹² NC⁻¹
D. 4.0 × 10⁹ NC⁻¹
29. All the heat generated by a current of 4 A passing through a resistor of 6 Ω for 15 s is used to evaporate 5.81 g of a liquid at its boiling point. What is the specific latent heat of the liquid?
A. 60 Jg⁻¹
B. 248 Jg⁻¹
C. 300 Jg⁻¹
D. 360 Jg⁻¹
30. Find the amount of heat required to convert 10 kg of ice at -5°C to water at 0°C.
(Specific heat of ice = 2200 Jkg⁻¹K⁻¹, Lf = 3.3 × 10⁵ Jkg⁻¹)
31. Snell’s law can be stated as:
A. sin i / sin r
B. n₁ sin θ₁ = n₂ sin θ₂
C. sin i – sin r
D. sin i + sin r
32. In an n-type semiconductor, the majority charge carriers are:
A. Electrons
B. Neutrons
C. Holes
D. Protons
33. A progressive wave is represented by the equation y = 0.2sin(200πt – 0.5x), where x and y are measured in cm and t in seconds. What is the frequency of the wave?
A. 0.5 Hz
B. 4.0 Hz
C. 10.0 Hz
D. 100.0 Hz
34. Find the turns ratio in a transformer which delivers a voltage of 150 V in the secondary coil from a primary voltage of 75 V.
A. 0.5
B. 2
C. 3
D. 1
35. The velocity ratio of an inclined plane inclined at 60° to the horizontal is:
A. 1.055
B. 1.155
C. 1.255
D. 2.00
36. The primary colours are:
A. Red, blue and green
B. Cyan, magenta and yellow
C. Black, blue and green
D. None of these colours
37. A galvanometer of internal resistance 400 Ω has a full-scale deflection for a current of 5 mA. What resistance is required to convert it to a voltmeter with a full-scale deflection of 10 V?
A. 17500 Ω
B. 1600 Ω
C. 2000 Ω
D. 2500 Ω
38. Two tuning forks of frequencies 76 Hz and 180 Hz are sounded close to each other. What is the frequency of the beats produced?
A. 2.4 Hz
B. 104 Hz
C. 0.4 Hz
D. 256 Hz
39. The defect of the eye lens which occurs as a result of weak ciliary muscles is called:
A. Astigmatism
B. Hypermetropia
C. Myopia
D. Presbyopia
40. The direction of an induced emf is solely demonstrated by:
A. Ohm’s law
B. Faraday’s law
C. Coulomb’s law
D. Lenz’s law
Here’s your cleaned-up and readable version with numbering starting from 23:
23. Which of the following instruments is based on Archimedes’ principle?
A. Galvanometer
B. Hydrometer
C. Ohmmeter
D. Voltmeter
24. What is the color of a red rose under blue light?
A. Green
B. Blue
C. Yellow
D. Black
25. If a room is saturated with water vapour, the temperature of the room must be:
A. at 0°C
B. above the dew point
C. at 100°C
D. below or at the dew point
26. A man exerts a pressure of 4.5 × 10³ Nm⁻² on the ground and has 2.5 × 10⁻² m² of his feet in contact with the ground. The weight of the man is:
A. 102 N
B. 70 N
C. 140 N
D. 112 N
27. The focal length of the objective lens of a telescope is 100 cm. If the magnifying power of the telescope is 50, what is the focal length of the eyepiece?
A. 2 cm
B. 0.4 cm
C. 2.4 cm
D. 0.5 cm
28. The electric field intensity in a place where a charge of 10⁻¹⁰ C experiences a force of 0.4 N is:
A. 4.0 × 10⁷ NC⁻¹
B. 8.0 × 10⁹ NC⁻¹
C. 8.0 × 10⁻¹² NC⁻¹
D. 4.0 × 10⁹ NC⁻¹
29. All the heat generated by a current of 4 A passing through a resistor of 6 Ω for 15 s is used to evaporate 5.81 g of a liquid at its boiling point. What is the specific latent heat of the liquid?
A. 60 Jg⁻¹
B. 248 Jg⁻¹
C. 300 Jg⁻¹
D. 360 Jg⁻¹
30. Find the amount of heat required to convert 10 kg of ice at -5°C to water at 0°C.
(Specific heat of ice = 2200 Jkg⁻¹K⁻¹, Lf = 3.3 × 10⁵ Jkg⁻¹)
31. Snell’s law can be stated as:
A. sin i / sin r
B. n₁ sin θ₁ = n₂ sin θ₂
C. sin i – sin r
D. sin i + sin r
32. In an n-type semiconductor, the majority charge carriers are:
A. Electrons
B. Neutrons
C. Holes
D. Protons
33. A progressive wave is represented by the equation y = 0.2sin(200πt – 0.5x), where x and y are measured in cm and t in seconds. What is the frequency of the wave?
A. 0.5 Hz
B. 4.0 Hz
C. 10.0 Hz
D. 100.0 Hz
34. Find the turns ratio in a transformer which delivers a voltage of 150 V in the secondary coil from a primary voltage of 75 V.
A. 0.5
B. 2
C. 3
D. 1
35. The velocity ratio of an inclined plane inclined at 60° to the horizontal is:
A. 1.055
B. 1.155
C. 1.255
D. 2.00
36. The primary colours are:
A. Red, blue and green
B. Cyan, magenta and yellow
C. Black, blue and green
D. None of these colours
37. A galvanometer of internal resistance 400 Ω has a full-scale deflection for a current of 5 mA. What resistance is required to convert it to a voltmeter with a full-scale deflection of 10 V?
A. 17500 Ω
B. 1600 Ω
C. 2000 Ω
D. 2500 Ω
38. Two tuning forks of frequencies 76 Hz and 180 Hz are sounded close to each other. What is the frequency of the beats produced?
A. 2.4 Hz
B. 104 Hz
C. 0.4 Hz
D. 256 Hz
39. The defect of the eye lens which occurs as a result of weak ciliary muscles is called:
A. Astigmatism
B. Hypermetropia
C. Myopia
D. Presbyopia
40. The direction of an induced emf is solely demonstrated by:
A. Ohm’s law
B. Faraday’s law
C. Coulomb’s law
D. Lenz’s law
CHEMISTRY
- Water gas is a mixture of:
A. CO₂ and H₂
B. CO and H₂
C. CO and N₂
D. CO₂ and N₂ - An organic compound that undergoes addition reaction is:
A. Alkene
B. Alkane - CH₃CHO + NaBH₄ → H⁺ → ?
A. CH₂=CH₂
B. CH₃CH₃
C. CH₃CH₂OH
D. CH₃COOH - Ethylethanoate + Ammonia gives:
A. Ethylamine
B. Ethanamide
C. Butanamide
D. Butylamine - Functional isomerism occurs between:
A. Alcohol and Alkanoate
B. Alkanoic acid and Alkanoate
C. Alkane and Alcohol - Reverse of esterification is:
A. Esterification
B. Hydrolysis
C. Hydration
D. Dehydration - Properties of monoclinic sulphur:
A. Amber coloured
B. Octahedral
C. Yellow coloured
D. Bright and yellow - SO₂ is used as a:
A. Oxidising agent
B. Dehydrating agent
C. Refrigerant - Calcium carbide reacts with cold water to form:
A. Ethyne (C₂H₂) - An aqueous solution of glucose will:
A. Boil at a higher temperature than pure water - Reduction of alkanal with NaBH₄ gives:
A. Alkanol
B. Alkanoic acid
C. Alkanone - Volume of distilled water to dilute 25 cm³ solution tenfold:
A. 225 cm³
B. 250 cm³
C. 275 cm³ - Mortal is hardened by:
A. Removal of CO₂
B. Decomposition of calcium hydrogen trioxocarbonate (IV) - Electroplating of teaspoon using Nickel:
A. Nickel is anode; Teaspoon is cathode - Which forms isotopes? (Context unclear)
- Bronze is an alloy of:
A. Copper and Tin - A deliquescent substance is one that:
A. Absorbs moisture and dissolves in it - Diagram of energy profile showing endothermic reaction.
- Solubility curve showing salt stable around 40°C.
- Nuclear reaction control rods are made from:
A. Carbon
B. Lead
- In the reaction:
3CuO(s) + 2NH₃(g) ⟶ 3Cu(s) + 3H₂O + N₂(g),
Ammonia gas acts as a:
A. Reducing agent B. Oxidizing agent C. Catalyst D. Base - In the reaction:
3Fe + 4H₂O ⟶ Fe₃O₄ + 4H₂,
The reducing agent is:
A. Iron B. Steam C. Oxygen D. Hydrogen - An organic compound that can undergo addition reaction is:
A. Butanamine B. Butane C. Butanol D. Butene - Sulphur(IV) oxide can be used as a:
A. Coating agent B. Dehydrating agent C. Refrigerant D. Drying agent - In the reaction:
CH₃COO + NaBH₄ ⟶ H⁺ ⟶ X,
The product ‘X’ is:
A. CH₂=CH₂ B. CH₃CH₃ C. CH₃CH₂OH D. CH₃COOH - The quantity of electricity used when a current of 10A flows for 1 hour during electrolysis is:
A. 3600 C B. 6000 C C. 36000 C D. 10000 C - The depletion of the ozone layer can cause:
A. Acid rain B. Increased UV radiation C. Smog D. Respiratory diseases - A characteristic of monoclinic sulphur is that it is:
A. Bright yellow B. Amber C. Octahedral in shape D. Has a melting point of 115°C - The screening effect of inner electrons affects the magnitude of:
A. Atomic size B. Ionization energy C. Melting point D. Electronegativity - In solids, motion is restricted to vibrations around fixed positions due to:
A. Weak forces B. Strong intermolecular forces C. High temperature D. Large spaces - Given 1.143g of an oxide gives 0.9143g of metal, and 0.2667g of the same oxide gives 0.2133g of metal, this illustrates:
A. Law of Definite Proportions B. Law of Conservation of Mass
C. Law of Multiple Proportions D. Avogadro’s Law - When a disturbed solution begins to precipitate, it is said to be:
A. Saturated B. Unsaturated C. Supersaturated D. Concentrated - An aqueous solution of glucose will boil at a temperature:
A. Below 100°C B. Exactly 100°C C. Slightly above 100°C D. 212°F - The coloured gas with a sweet smell produced by reaction of water on calcium carbide is:
A. Ethene B. Ethyne C. Methane D. Carbon monoxide - Mortar hardens due to the:
A. Evaporation of water B. Hydration of cement C. Effect of sunlight D. Removal of air - The correct electrodes for electroplating a teaspoon with nickel are:
A. Nickel (Anode) and Spoon (Cathode)
B. Zinc (Cathode) and Spoon (Anode)
C. Iron and Nickel
D. Spoon and Zinc - A hydrocarbon with a vapour density of 21 and containing 36g of carbon per mole belongs to the homologous series:
A. Alkane B. Alkene C. Alkyne D. Alkanol - An element undergoes oxidation when:
A. It gains electrons B. Its oxidation number decreases
C. Its oxidation number increases D. It becomes the reducing agent - If the principal quantum number is 3, the number of possible subshells is:
A. 1 B. 2 C. 3 D. 4 - The catalyst used in the contact process is:
A. Nickel B. Iron C. Vanadium (V) oxide D. Copper - Butane is an isomer of:
A. 2-Methylpropane B. Pentene C. 2-Methylbutane D. Ethene
- What is the product formed in the reaction below?
CH₃CHO + NaBH₄ →(H⁺)→ X - What are the characteristics of monoclinic sulphur?
- The rate of the reaction below can be increased by:
H₂(g) + Cl₂(g) → 2HCl(g) - Which organic compound can undergo an addition reaction?
- Water gas is a mixture of?
- A substance that absorbs water from the air and dilutes itself is called?
- What is the process of heating rubber with sulphur called?
- An element with atomic number 18 has two isotopes X and Y.
- Isotope X has 20 neutrons
- Isotope Y has 22 neutrons
What are their mass numbers?
a) Y = 38, X = 40
b) Y = 40, X = 38
c) X = 18, Y = 20
d) X = 20, Y = 18 - In the reaction:
3Fe + 4H₂O → Fe₃O₄ + 4H₂
What is the reducing agent?
a) Fe₃O₄
b) H₂O
c) Fe
d) H₂ - What is the primary product when ammonia is bubbled through ethyl ethanoate?
- Which of the following is the lightest metal?
A) Aluminium B) Sodium C) Lithium D) Magnesium - Which non-metal is a liquid at room temperature?
A) Phosphorus B) Bromine C) Nitrogen D) Fluorine - The reaction of an acid with a metal generally produces:
A) Salt and water
B) Salt and hydrogen gas
C) Metal oxide and water
D) Metal hydroxide and hydrogen gas - Which metal is responsible for hardening steel?
A) Zinc B) Nickel C) Carbon D) Chromium - Which of the following is not a characteristic property of non-metals?
A) High electronegativity
B) Poor conductivity of heat
C) Malleability
D) Brittle in solid state - What is the main ore of iron?
A) Bauxite B) Haematite C) Galena D) Magnetite - Which non-metal is essential for the production of DNA and ATP in living organisms?
A) Nitrogen B) Phosphorus C) Sulfur D) Carbon - Which metal is used in making aircraft due to its light weight and strength?
A) Titanium B) Iron C) Lead D) Aluminium - Which metal is used as a sacrificial anode to protect ships and pipelines from corrosion?
A) Copper B) Magnesium C) Gold D) Zinc - Which non-metal is used in the vulcanization of rubber?
A) Nitrogen B) Oxygen C) Sulfur D) Carbon - The most abundant metal in the Earth’s crust is:
A) Aluminium B) Iron C) Calcium D) Sodium - Which non-metal is used in water purification processes?
A) Nitrogen B) Chlorine C) Fluorine D) Oxygen - Which of the following metals is the least dense?
A) Gold B) Platinum C) Lithium D) Copper - Which non-metal exists as a diatomic gas at room temperature?
A) Sulfur B) Phosphorus C) Nitrogen D) Carbon - Which metal has the highest melting point?
A) Iron B) Tungsten C) Copper D) Aluminium - Which metal is used in galvanizing iron to prevent rusting?
A) Tin B) Lead C) Zinc D) Silver - Which metal is essential for the formation of hemoglobin in the blood?
A) Iron B) Calcium C) Copper D) Zinc - Which non-metal is used in the production of matches due to its flammability?
A) Sulfur B) Phosphorus C) Chlorine D) Fluorine - The process of heating an ore in the absence of air to remove volatile substances is called:
A) Roasting B) Calcination C) Smelting D) Electrolysis - A sulphide that is insoluble in water is _____
- Another name for LiAlH₄ is?
- What is the product when ALKANAL reacts with NaBH₄?
- What is SO₂ used for?
- Ethyl ethanoate reacts with ammonia to give?
- In the reaction:
CuO + NH₃ → Cu + H₂O + N₂
Ammonia acts as what? - In electroplating a teaspoon using nickel, what are the anode and cathode?
- What is one effect of ozone layer depletion?
- How is water gas produced?
- What is one characteristic of monoclinic sulphur?
- Another name for LiAlH₄ is?
BIOLOGY
- Which is a multicellular organism?
A. Euglena
B. Sponges
C. Chlamydomonas
D. Paramecium - Continuous variation example:
A. Intelligence- Dental formula for dog? (Answer missing)
- Type of circulatory system in arthropods and molluscs:
A. Open circulatory system - Organ responsible for balance:
A. Ear - Theory of use and disuse by:
A. Jean Lamarck - What is a plumule? (Answer missing)
- Lungs excrete:
A. CO₂ - Selective reabsorption in the kidney occurs in:
A. Loop of Henle - Pollination occurs in:
A. Carpel - Phenotypic ratio in F2 generation of TT RR × tt rr cross:
A. 9:3:3:1 - Excretory product used in malaria medicine:
A. Alkaloid - Secondary thickening occurs in:
A. Dicot stem - Organism with one opening:
A. Hydra - Propagation method for cocoa and kolanut:
A. Marcotting
B. Grafting
C. Layering - Pitcher plant is an example of:
A. Insectivore - Net result of mortality and natality is: (Answer: Population Growth)
- Animals obtain carbon by:
A. Eating plants - Ability to taste PTC is a:
A. Physiological variation - Depletion of ozone layer leads to:
A. Skin cancer
- The pitcher plant is an example of a:
A. Omnivore
B. Herbivore
C. Carnivore
D. Saprophyte - After fertilization in plants, the zygote develops into the:
A. Plumule
B. Radicle
C. Embryo
D. Cotyledon - Which tissue is composed of two dead cells and has a deposit of lignin?
A. Sclerenchyma
B. Collenchyma
C. Parenchyma
D. Phloem - Which of the following birds has webbed feet?
A. Duck
B. Penguin
C. Pigeon
D. Hummingbird - The pair of lungs found in mammals excretes:
A. Carbon(II) oxide
B. Oxygen
C. Carbon(IV) oxide
D. Nitrogenous waste
- The reduction of chromosomes during meiosis will produce a:
A. Stem Cell
B. Sex Cell
C. Somatic Cell
D. Zygote - Which of the following processes encourages competition in a habitat?
A. Increased Emigration
B. Decreased Breeding
C. Intense Production
D. Increased Immigration - A photosynthetic carnivorous plant that feeds on insects is called:
A. Parasitic
B. Saprophytic
C. Herbivorous
D. Insectivorous - Which sense organ is responsible for maintaining balance?
A. Eyes
B. Skin
C. Ear
D. Tongue - Which of the following organisms has only one body opening?
A. Euglena
B. Paramecium
C. Amoeba
D. Hydra - The site where protein is synthesized in a cell is the:
A. Nucleus
B. Lysosome
C. Ribosome
D. Cell Membrane - If a tall plant (TT) with red flower (RR) is crossed with a dwarf plant with white flower (rr), what is the phenotypic ratio of the F2 generation?
A. 9:6:1
B. 9:1:3:3
C. 9:3:4
D. 9:3:3:1 - The filtered blood that leaves the kidney through the renal vein contains:
A. Less carbon dioxide and more oxygen
B. Less oxygen and more carbon dioxide
C. More urea and carbon dioxide
D. High glucose and proteins - The major climatic factor that determines the type of vegetation in a forest ecosystem is:
A. Rainfall
B. Air
C. Turbidity
D. Humidity - The excretory product of plants used in the production of malaria medicine is:
(Answer: Quinine from the bark of cinchona tree) - Incisor teeth in rodents are primarily used for:
A. Chewing
B. Gnawing
C. Eating
D. Breaking - The sharp, strong, and curved beak of a hawk is adapted for:
A. Chewing
B. Gnawing
C. Tearing Flesh
D. Pecking - One of the hormones produced by the pancreas is:
A. Insulin
B. Adrenaline
C. Thyroxine
D. Testosterone - The community that remains unchanged in composition over a long period of time is called:
A. Stable community
B. Dynamic community
C. Climax community
D. Tertiary community - The shape of a normal red blood cell is:
A. Oval
B. Disc-shaped
C. Rod-shaped
D. Spherical - The response of a plant to gravity is known as:
A. Geotropism
B. Phototropism
C. Hydrotropism
D. Thigmotropism - The study of natural communities is referred to as:
A. Taxonomy
B. Genetics
C. Ecology
D. Botany - A drawing of a Tilapia fish has the pectoral fin labeled III. What is the function of the pectoral fin?
(Answer: Used for steering and balance) - The ability to taste PTC (Phenylthiocarbamide) is an example of:
A. Mutation
B. Dominant Trait
C. Recessive Trait
D. Genetic Drift - The type of placentation common in succulent fruits is:
A. Axile
B. Basal
C. Marginal
D. Parietal - Nitrifying bacteria keep the soil fertile by converting:
A. Ammonia to Nitrites and Nitrates
B. Nitrates to Ammonia
C. Nitrogen to Carbon Dioxide
D. Oxygen to Nitrogen - The method of propagation in Cocoa and Kolanut is:
A. Grafting
B. Layering
C. Budding
D. Cutting - Lamarck’s theory of evolution is also known as the theory of:
A. Natural Selection
B. Use and Disuse
C. Mutation
D. Artificial Selection - Presbyopia, an eye defect, can be corrected by using:
A. Concave lenses
B. Convex lenses
C. Cylindrical lenses
D. Bifocal lenses - The ability of an organism to successfully survive in its environment is known as:
A. Resistance
B. Survival
C. Fitness
D. Adaptation - The type of joint in humans that allows movement in all directions is the:
A. Hinge Joint
B. Ball and Socket Joint
C. Pivot Joint
D. Gliding Joint - An example of a sex-linked trait is:
A. Baldness
B. Sickle Cell
C. Hemophilia
D. Albinism - To test a leaf for starch, the leaf is first decolorized and then tested with:
A. Ethanol
B. Benedict’s Solution
C. Iodine
D. Limewater - Animals obtain carbon by:
A. Breathing
B. Eating Plants
C. Photosynthesis
D. Absorption from the Soil
Government Questions
- Which electoral commission ushered in the Fourth Republic?
- The Local Government system became the third tier of government in Nigeria in which year?
- In a unitary system of government, sovereignty is located in the:
- a. Judiciary
- b. Legislature
- c. Executive
- d. Central government
- A country’s foreign policy is mostly based on its:
- Which was the prominent political party in the Second Republic?
- All of the following are legal methods of acquiring citizenship except:
- a. Naturalization
- b. Registration
- c. Migration
- d. Honorary
- Which of the following is NOT an instrument used by pressure groups?
- a. Lobbying
- b. Inflaration (possibly a typo, maybe meant “infiltration”)
- c. Strike
- d. Propaganda
- MAMSER (Mass Mobilization for Self Reliance, Social Justice, and Economic Recovery) was established during the regime of:
- a. Obasanjo
- b. Babangida
- c. Buhari
- d. Abacha
- What is the basic idea behind the formation of NEPAD (New Partnership for Africa’s Development)?
- Which organ of the United Nations (UNO) has veto power?
(Likely referring to the Security Council) - The General Assembly of the United Nations (UNO) consists of:
- Where is the headquarters of the African Union (AU) located?
- Why is presidential assent needed in the process of drafting a bill?
- In which Republic were the presidential and parliamentary functions fused in Nigeria?
- One feature of the Independence Constitution of 1960 was that the Governor-General was the Head of State representing:
- a. The people
- b. The Prime Minister
- c. The Constitution
- d. The Queen
- Oligarchy is a form of government that places power and emphasis on:
- a. The workers
- b. The people
- c. The few
- d. The rich
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IS THIS THE 2024 JAMB MOCK?
THANKS
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